battleground states, so obviously a lot is riding on this debate for mitt romney. we go now to paul. >> reporter: frank, i tell you what, as you said, mitt romney is trailing in some polls. some polls have him tied. but a lot of people say it's romney's night to shine. this is the contra costa county republican party campaign office. people up there are sitting on the edge of their seats, waiting to hear from the man, mitt romney, they say will be the next president of the united states. it's the first head-to-head debate between president obama and his republican challenger mitt romney. many people agree there are major differences between the two, who will battle it out for about 90 minutes on domestic issues, which is exactly what some people we spoke with say they want to hear. >> they're professionals. they're good at it. the information they have on hand and who do they speak to. you're singing to the choir on one hand, then going for the independents on the other. >> there's some specific plans i want to hear that people have, exactly how they plan to implement their change.